[all-commits] [llvm/llvm-project] 4b4ea6: [HLSL] Make casting functions constexpr (#108902)

[Chris B via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 4b4ea6d84bddb5e7b3f144d18630390755e8f7b6
      https://github.com/llvm/llvm-project/commit/4b4ea6d84bddb5e7b3f144d18630390755e8f7b6
  Author: Chris B <chris.bieneman at me.com>
  Date:   2024-09-20 (Fri, 20 Sep 2024)

  Changed paths:
    M clang/lib/Headers/hlsl/hlsl_detail.h
    M clang/lib/Headers/hlsl/hlsl_intrinsics.h
    M clang/test/CodeGenHLSL/builtins/asuint.hlsl
    A clang/test/SemaHLSL/BuiltIns/asfloat-constexpr.hlsl
    A clang/test/SemaHLSL/BuiltIns/asuint-constexpr.hlsl

  Log Message:
  -----------
  [HLSL] Make casting functions constexpr (#108902)

This marks the `bit_cast` helper as `constexpr` and allows the casts
implemented with it to also be `constexpr`. This is largely not a
functional change, but it enables using the casts in expressions that
need to be resolved at compile time as demonstrated with the static
asserts in the new tests.

---------

Co-authored-by: joaosaffran <126493771+joaosaffran at users.noreply.github.com>



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